GameCube Bottom Ports: Memory Card, Expansion, Audio/Video & Power

The underside of the Nintendo GameCube features:

• Memory Card Slot (×2): For saving game data (official 59/251/1019 blocks, or third-party).
• Expansion Port (Serial Port 1): Intended for modem/broadband adapter (released); also used by WaveBird wireless receiver.
• Digital AV Out: Proprietary port for component (480p), RGB SCART, or D-Terminal cables (requires specific cable with DAC chip). Not standard HDMI.
• Analog AV Out: Standard composite (RCA: Yellow/Red/White) and S-Video (separate port on some models) for SDTV.
• DC Power Input: Connects to external power brick (AC adapter).

All models share this layout; regional variants differ only in video encoding (NTSC/PAL).